Improvement in portable furnaces



2 Sheets--Sheet 1. A. BEA N.

Portable Furnaces. No.1'52033, y Patented]une16,1874.

UNITD STATES PATENT QFFICE.

AUGUSTUS BEAN, OF CONCORD, NEW HAMPSHIRE.

IMPROVEMENT IN PORTABLE FURNACES.

Specification forming part of Letters Patent No. 152,033, dated June 16,1874; application tiled April 16, 1874.

will enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings and tothe letters of reference marked thereon, which form a part of thisspecification. l

This invention relates to that class of devices used as attachments tostoves or ranges for cooking or other purposes, when it is def sirableto use-simply the necessaryT fuel to complete the operation, withoutmaking so large a iire as is required to raise the temperature of thecommon cookingstove or range to a point which will enable it toaccomplish this object; and the device will be found to be a greatdesideratum with families, especially during the summer months, when buta small amount of cooking is required, and it is desirable to have nolire which shall heat the room where the operation is in progress; andthe invention consists in a certain cylindrical vessel provided with agrate at its bottom, and suitable openings for the exit of smoke or gasat its sides, which will now be fully described, and then pointed out inth claim.

Figure l is a perspective view of the device complete. Fig. 2 presents avertical section. Fig. 3 is a plan of the grate. Fig. 4 is a view of theunder side of the cover, showing the circular opening for the utensils,and

the opening for the admission of air.

The cylinder A is of sheet or cast iron, and

lis securely attached at its upper end to an annular ring, B, of castmetal. These cylinders are made of such sizes as will allow them to passthrough the ordinary openings in the tops of stoves or ranges, the ringB resting upon the top thereof, and serving to support and retain thedevice in position. At the lower end of the cylinder is a flange, C,turned inward, thus becoming the support for a circular grate, D, whichforms the bottom of the cylinder, which is also perforated with suit=able openings c for the exit of smoke or gas, which passes oft' throughthe ues of the stove or range to the chimney. The cover E is of suchdimension as t0 iill the opening in the top of the cylinder, and. isitself provided with an opening, b, for the admission of air to the topof the fuel, when desired. This opening is closed by a slide, c, havingan orice through it of the same size as that in the cover, the slidemoving in circular ways, and being retained in position by a dovetailedpiece, d, which is riveted to the slide and locks it to the cover. Thelarge circular opening in this cover E is closed by a supplementarycover, F, when not in use for cooking or other purposes. A bail, H, isattached to the annular flange B by two ears, e e, by which the wholeattachment may be readily removed from the stove or range, when desired.

It will be obvious that this invention will allow the heating of water,making tea or coffee, or any of the minor operations of cookery, withthe least possible amount of fuel, which is applied immediately underthe article to be heated or cooked, thus avoiding the necessity ofheating the whole stove or range, and raising the temperature of theroom in which they are placed, as the surrounding air-spaces within thestove or range perform the function of a non-conductor, thus enabling itto be used in the warmest weather with scarcely a perceptible elevationof the temperature of the surrounding atmosphere. v

Any ordinary 'fnely-comminuted fuel may be used, as hard coal, charcoal,chips, or even sawdust; the apparatus being found to work well witheither.

I am aware that portable stoves have been heretofore used, as may beseen in the patents of A. Magee,.No. 40,570, and N. O. Bond,

No. 85,054; but I do not elaiiin anything` therein. shown.

Having thus described my invention7 l claim as new7 and desire to Seenreby Let-ters Patent, the oiiowing:

A stove attachment consisting,` of the perforated cylinder A, providedwith the 'frange B,bni1 II, grate D, :ind cover E, the latter having :inopening7 l), covered by the slide e,

all being combined and arranged as shown and described.

In testimony that I eiaini the foregoing` as my own I hereunto mysignature in presenee of two witnesses.

AUGUSTUS BEAN.

'Witnesses WM. M. CHASE, ANSON S. B'I'ARSHALL.

